Patching Tools (needed to apply patches to ROMs):Lunar IPS - Lunar IPS is intended as an easy to use, lightweight IPS patch utility for windows to replace DOS program. It can both create and apply IPS patches.

Iso patcher - This tool lets you quickly insert a list of files in a PSX ISO. You can choose the ISO format and optionally regen ECC/EDC on the fly. Instructions are in Chinese but are easily understandable.

IPSWin - IPSWin is an IPS patching utility for Windows. THIS PROGRAM HAS BUGS! It will not patch correctly in some cases! We recommend using LunarIPS in it's place.